For eczema patients, drinking milk is not an absolute contraindication, but it is just best for patients with milk allergies not to drink milk during acute flare-ups. Eczema belongs to a group of allergic diseases that are multi-gene related. Although theoretically hereditary, the majority of patients develop the disease in relation to their habits, dress code, exposure and living environment. Dietary factors are only one of the possible influences. If necessary, skin allergen testing and food intolerance tests can be performed to further identify allergens that may trigger eczema. Avoid fish, shrimp, crab and other omnivorous proteins as much as possible. In choosing dairy products, you can fix a certain brand of milk powder and should not change it at will. For infants, exclusive breastfeeding is encouraged. In case of mixed feeding, the mother should avoid eating and pay attention to improving the micro-ecology of the body with a small amount of probiotics (such as bifidobacteria). In conclusion, in terms of dietary requirements for eczema patients, if it is determined that they are not class allergies, they can consume dairy products in moderation. It is also necessary to abstain from spicy stimuli and to give supportive, symptomatic treatment with standardized antihistamines, anti-inflammatory drugs, and immunomodulatory drugs. At the same time, skin moisturization should be strengthened.